Radon is a colorless, odorless, invisible radioactive gas that comes from the soil. It is naturally occurring, but in homes and buildings it can concentrate to higher levels than those naturally found outdoors. Radon is the number one cause of cancer in never smokers and the second leading cause of cancer in smokers. The only way to know if radon is a problem in your house is to test. Testing is easy and inexpensive. If high levels are found in your home, it can be fixed. In Kansas, radon contractors are certified. You can find a list of certified contractors on the KDHE website by clicking the picture.